The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 1988
Filed:
Feb. 24, 1987
Yutaka Sugiyama, Tokyo, JP;
Nihon Biso Kabushiki Kaisha, Tokyo, JP;
Abstract
A rope locking device for stopping an abnormal descent of an ascending and descending apparatus such as a gondola used for a construction work. The device comprises two separate cases. One of the cases contains a rope clamping member formed on one side thereof with a groove in which one side of a rope can be engaged, a rope clamping member drive for displacing the rope clamping member between a first position in which the rope clamping member is spaced from the rope and a second position in which the rope clamping member is pressed against the rope, an energizing member for energizing the rope clamping member to move from the first position to the second position, a lock device for holding the rope clamping member in the first position against the energizing force and a lock release device for releasing locking of the rope clamping member by detecting a relative running speed of the rope and releasing the lock device when the running speed of the rope has exceeded a predetermined speed. The other case contains a rope support member formed with a groove in which the other side of the rope can be engaged. The device further comprises case fixing assembly or device for fixing the two cases to each other.